ASTROSAT CZTI

Data Quality Report

Orbit 09393

Creation date: 2024-06-27T15:45:27.936107
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_069T01_9000001332_09393cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09393cztM0_level2_quad_clean.evt
Size (bytes)480,199,680102,191,040
Size458.0 MB 97.5 MB
Events in quadrant A4,128,145664,498
Events in quadrant B3,002,427681,751
Events in quadrant C3,138,526685,648
Events in quadrant D3,867,551644,982

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163162
B0128761
C0132311
D0153811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59892133.556520%
B5989661.102020%
C59891242.070463%
D59893626.044415%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7284 5990 89 89 1.22% 1.49%
B 7284 5990 0 0 0.00% 0.00%
C 7284 5990 29 29 0.40% 0.48%
D 7284 5990 240 240 3.29% 4.01%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 5 1238711 8321.62 740 726 148.8
A 5 16 17350 111.75 740 726 148.8
A 1 162 11667 73.54 740 726 148.8
B 0 214 52537 375.66 749 731 137.9
B 12 111 14446 99.45 749 731 137.9
B 11 111 11561 78.53 749 731 137.9
C 4 254 194614 1156.27 741 747 167.7
C 14 234 47693 280.0 741 747 167.7
C 13 61 5507 28.39 741 747 167.7
D 1 52 457032 2489.72 722 707 183.3
D 9 64 195241 1061.38 722 707 183.3
D 7 71 169159 919.08 722 707 183.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter